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Eddy Current Loss and Shielding Research of the Tank in Power Transformer

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Abstract:

The problem about the eddy current loss which is caused by leakage magnetic field in ultrahigh pressure large capacity power transformer is becoming more extrusive. It is very significant to research the power transformer leakage magnetic field and eddy current loss on the tank wall thoroughly and accurately. 3D finite element model of power transformer leakage magnetic field and eddy current loss is established in this paper, the eddy current loss on the tank wall is calculated and the distribution is analyzed. For the eddy current loss could be reduced by magnetic shielding, new calculation model are established respectively, then eddy current loss on tank wall could be got with shielding. The best size and location of the shielding could be analyzed after changing the height of the shielding, which provided the important evidence to reduce tank wall eddy current loss effectively. The calculating methods have been proved to be accuracy after experiment.

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Periodical:

Advanced Materials Research (Volumes 468-471)

Pages:

1086-1089

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.468-471.1086

Citation:

Cite this paper

Online since:

February 2012

Authors:

Yong Ming Xu, Chao Du, Da Wei Meng

Keywords:

Eddy Current Loss, Leakage Magnetic Field, Magnetic Shielding, Power Transformer

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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References

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